124531200020 has 24 divisors (see below), whose sum is σ = 261562035168. Its totient is φ = 49803620000.

The previous prime is 124531200007. The next prime is 124531200029. The reversal of 124531200020 is 20002135421.

124531200020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 124531199965 and 124531200001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124531200029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437906 + ... + 663945.

It is an arithmetic number, because the mean of its divisors is an integer number (10898418132).

Almost surely, 2^124531200020 is an apocalyptic number.

124531200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124531200020 is an abundant number, since it is smaller than the sum of its proper divisors (137030835148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

124531200020 is a wasteful number, since it uses less digits than its factorization.

124531200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107511 (or 1107509 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 124531200020 its reverse (20002135421), we get a palindrome (144533335441).

The spelling of 124531200020 in words is "one hundred twenty-four billion, five hundred thirty-one million, two hundred thousand, twenty".